Patents by Inventor Kei OTANI

Kei OTANI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • OIL RING WIRE
    Publication number: 20240026972
    Abstract: An oil ring wire (2) contains an alloy steel as a material. The alloy steel contains: 0.50 to 0.65% by mass C; 1.60 to 2.30% by mass Si; 0.60 to 1.10% by mass Mn; 0.75 to 1.15% by mass Cr; 0.18 to 0.45% by mass Ni; 0.05 to 0.15% by mass V; 0.15% by mass or less Cu; and inevitable impurities. In the oil ring wire (2), an area percentage of a carbide is more than 6.0% and 10.0% or less. Also disclosed is a method of producing the oil ring wire.
    Type: Application
    Filed: December 27, 2021
    Publication date: January 25, 2024
    Applicant: TOKUSEN KOGYO CO., LTD.
    Inventor: Kei OTANI